Alternative proof of semipositivity and nefness for K-semistable log-Fano pairs.
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An introduction is provided to some current research trends in stability in geometric invariant theory and the problem of Kaehler metrics of constant scalar curvature. Besides classical notions such as Chow-Mumford stability, the emphasis is on several new stability conditions, such as K-stability, Donaldson's infinite…
If is a projective manifold in , then one can associate to each one parameter subgroup of the Mumford invariant. The manifold is Chow-Mumford stable if is positive for all . Tian has defined the notion of K-stability, and has shown it to be intimately related to the existence of Kä…
The Chow-Mumford (CM) line bundle is a functorial line bundle on the base of any family of klt Fano varieties. It is conjectured that it yields a polarization on the moduli space of K-poly-stable klt Fano varieties. Proving ampleness of the CM line bundle boils down to showing semi-positivity/positivity statements abou…